Update Dockerfile

Dockerfile

@@ -21,9 +21,12 @@ RUN curl -fsSL https://www.postgresql.org/media/keys/ACCC4CF8.asc | gpg --dearmo
 # Install PostgreSQL 16 client and server
 RUN apt-get update && apt-get install -y postgresql-client-16 postgresql-server-dev-16
 
+# Create the foobar user and group
+RUN groupadd -r foobar && useradd -r -g foobar foobar
+
 # Create the PostgreSQL data directory and set permissions
 RUN mkdir -p /var/lib/postgresql/data && \
-    chown -R postgres:postgres /var/lib/postgresql/data
+    chown -R foobar:foobar /var/lib/postgresql/data
 
 # Copy the entrypoint script to the container
 COPY entrypoint.sh /usr/local/bin/